• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of Applied Polymer Science >Hg(II) Removal from HCl Solutions Using a Tetraalkylphosphonium Ionic Liquid Impregnated Onto Amberlite XAD-7
【24h】

Hg(II) Removal from HCl Solutions Using a Tetraalkylphosphonium Ionic Liquid Impregnated Onto Amberlite XAD-7

机译：使用浸渍在Amberlite XAD-7上的四烷基from离子液体从HCl溶液中去除Hg（II）

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Extractant impregnated resins (EIRs) were prepared by impregnation of Amberlite XAD-7 with tetraalkylphosphonium chloride ionic liquid (IL). The EIRs were tested for the sorption of Hg(II) in HCl solutions. Mercury is bound on the EIR through an ion exchange mechanism involving chloroanionic species and the IL. The effect of HCl concentration and IL content is studied and the sorption isotherms are obtained in 1 M HCl solutions: the sorption capacity linearly increases with IL loading up to 100 mg Hg L~(-1). A little fraction of the IL immobilized on the resin (about 40 mg IL g~(-1)) is tightly bound to the polymer limiting its reactivity with metal ions. The uptake kinetics are mainly controlled by intraparticle diffusion. At high IL loading the kinetics are slowed down, while the temperature has a limited impact. Nitric acid can be used for desorbing mercury and recycling the EIR for at least five cycles.
机译：萃取剂浸渍的树脂（EIR）通过用氯化四烷基alkyl离子液体（IL）浸渍Amberlite XAD-7来制备。测试了EIR对HCl溶液中Hg（II）的吸附。汞通过涉及氯阴离子物质和IL的离子交换机制结合在EIR上。研究了HCl浓度和IL含量的影响，并在1 M HCl溶液中获得了吸附等温线：当IL负载量达到100 mg Hg L〜（-1）时，吸附容量线性增加。固定在树脂上的一小部分IL（约40 mg IL g〜（-1））与聚合物紧密结合，从而限制了其与金属离子的反应性。吸收动力学主要受颗粒内扩散控制。在高IL负载下，动力学变慢，而温度的影响有限。硝酸可用于解吸汞并将EIR循环至少五个循环。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号